AFAIK, MINI dealers are using MINI branded oil that is identical to the BMW "high performance synthetic oil" 5W-30 grade. I am not 100% sure, though. If you call the tollfree number on the underhood stickers, they will always tell you to use full synthetic Mobil1, Valvoline, or Castrol, in 5W-30 grade. Yet none of these oils meet the specs in the owners manual, calling for an A3, heavier 5W-30. Go figure. The oil life monitor leads to a very extended OCI on BMW's and MINI's. I would do one in between the free ones at the dealer. They will all tell you the same thing, off the record, if you plan on keeping the car a long time (and running like new). Same story with BMW motorcycle dealer here.